The Church of Santa María la Mayor is the one that undertakes most of the town's religious services. Of the three Mudjéar churches it is the largest and the best preserved.
It was built in the 13th century, with new sections added in the 16th and 17th centuries. The tower still has access ramps and was modified at the end of the 18th century, specifically in 1772, as it suffered partial collapse due to the earthquake in Lisbon. During the reconstruction the belfry and the pyramid shaped chapter house were added.
The interior of the temple is divided into three naves covered by terraced roofs and separated by pointed arches that stand on four pillars and four paired columns. The church is crowned by a chancel covered with Gothic ribbing and joined to the central nave by a transverse arch. The Gospel nave has two adjoining chapels, one of which houses the baptismal font ( 16th century) that has a carving of great artistic and historical value, the Cristo de San Pedro, a 14th-century work. The Main Altarpiece, dating from the 18th century and Baroque in style, is adorned by an image of Nuestra Señora del Rosario. The sacristy has a chamber that houses a collection of artistic and historical gold pieces, works of great value in different styles and metals.